Window sash



March 1, 1955 V. VAN FLEET WINDOW SASH Fiied Feb. 5, 1955 Arroewsrs United States Paten M 2,703,159 WINDOW SASH Vincent Van Fleet, Detroit, Mich. Application February 5, 1953, Serial No. 335,199 2 Claims. (Cl. 189 -76) This invention relates to an improved sash.

An object is to provide a sash preferably formed of a strip of sheet metal folded upon itself to exhibit a tubular portion generally rectangular in cross section and a channel portion extending along one side of the tubular portion and disposed substantially within the plane thereof and being integral therewith, the whole constituting a strong, rugged sash frame section. I

Another object is to provide a sash of the character specified which is light in weight, relatively small in dimension, of a strong and rugged construction, and which presents a neat, attractive appearance.

Another object is to provide a sash frame section as described which isv self-sustaining without welding, brazing, riveting, or the like, and wherein by a slight modification of its design, the channel portion thereof may be adapted to receive either the marginal part of a glass pane or the marginal part of a screen mesh.

A meritorious feature is that the sash frame is so formed in cross section that when mitered frame sections are brought together at a corner angular corner plates shaped so as to be cooperatively associated therewith may be easily secured thereto constituting a rigid corner construction therewith without the employment of screws, rivets, or the like. The two frame sections secured together at a corner by such corner plates providing a strong, rigid corner wherein the frame sections are held securely against relative displacement, wobble, or twist.

Another meritorious feature. is that the strip of sheet metal which is used to make up a frame section is so folded upon itself that. its opposite linear edges are brought together in overlapping abutting engagement to provide a multiply' wall and the two sides of such wall are needled or crimped securely together Without the employment of welding, soldering, riveting, or the like.

Such overlapping, abutting plies constitute one side wall J of' the channel of the sash frame section, as here shown. One plythroughout its length and for a portion of its width is directly in abutment with its cooperating ply and throughout its length and for the remaining portion of its width is spaced from such cooperating ply. Such space between the two plies constitutes an extension of the interior of the tubular rectangular channel frame and cooperates therewith to receive the corner plates to form a rigid, strong corner for a sash.

An important characteristic of a sash embodying this invention is that sash frame sections built as described may be secured together at the corners by my corner plates so shaped as to be cooperatively engaged with the frame sections without welding, soldering, riveting, or the like. The angular corner plates are provided with legs, each of which legs exhibits a part which is generally rectangular in cross section and which is adapted to be snugly received within the tubular rectangular frame sections. Each leg also has a flat or plate-like part which is adapted to be snugly received between the two plies of a side wall of the channel heretofore described. This corner plate forms a securely rigid angular extension of a frame section and such corner plate when used to connect two frame sections at a corner provide a strong, rugged corner portion for a sash.

Other objects, advantages and meritorious features will more fully appear from the following description, claims and accompanying drawing, wherein:

Fig. 1 is a fragmentary perspective showing two sash frame sections separated and disposed to be engaged by 2,703,159 Patented Mar. 1, 1955 a corner plate illustrated as positioned to be received thereinto;

Fig. 2 is an elevation of a fragment of a corner of a sash with a part of the glass pane received therein, such being of the character shown in Fig. 1;

Fig. 3 is a transverse sectional view taken on the line 3-3 of Fig. 2;

Fig. 4 is a transverse sectional view taken on line 44 of Fig. 2;

Fig. 5 is a fragmentary perspective of the character shown in Fig. 1, except that the sash frame illustrated is one adapted to serve as a screen sash rather than a sash for a glass pane;

Fig. 6 is a transverse sectional view through a screen sashshowing a screen sash engaged within the channel of the sash.

The sash illustrated in the drawing is formed from a strip of sheet metal. A strip of suitable sheet aluminum may be used. The design is simple and within the disclosure of the design the strip may be folded to provide a sash adapted to receive a glass pane, or by a slight modification in design it may be folded to provide a sash adapted to receive a screen mesh.

In each modification, the sash frame exhibits a tubular portion which is generally rectangular in cross section and a channel portion which extends along one side of the rectangular tubular portion and is disposed substantially within the plane thereof. The strip of sheet metal is so folded and crimped together that it maintains its self-sustaining form without the employment of welding, brazing, riveting or the like, which provides a peculiarly strong, rugged and rigid sash structure.

In the glass pane sash form illustrated in Figs. 1

through 4, the metal strip is folded up to form a tubular frame portion generally indicated by the numeral 10. The strip is also folded to exhibit a channel shaped portion generally indicated by the numeral 12 and which channel shaped portion is disposed within the plane of the frame. It will be seen that one side wall of the rectangular tubular portion is extended and folded upon itself to provide a two-ply side wall 14 of the channel. It is then folded to provide the bottom wall 16 of the channel. It is then folded to provide the side wall 18 of the channel. The side wall 18 of the channel is folded over upon itself and over the margin of the extended opposite side wall of the rectangular tubular frame and needled or crimped thereinto along the line 20.

Fig 3 shows in enlarged section how one margin of the strip is folded over the opposite margin and crimped theremto at 20. This crimping or needling provides a strong. connection between the parts and the resulting frame section is of a rugged, rigid character.

That side wall of the rectangular tube 10 which is extended and overlaps the side wall 18 of the channel and 1s needled thereto, as above described, directly abuts the side wall 18 throughout its length for a portion of the w1dth of the overlap, as shown, along the outer margin of the s de wall of the channel. Throughout the remainlng portion of the width of the overlap and throughout the length thereof the outer ply of this two-ply wall is spaced as at 22 from the mner ply. This overlap space forms a gontinuation of the space within the rectangular tubular tame.

In Figure 1, two frame sections formed as described are illustrated and a corner plate of the character shown is provided to secure the mitered ends of such two frame sections together. This corner plate comprises a flat plate portion 24 which has one margin 26'folded downwardly as shown to strengthen the same. Throughout a portion of each leg of this angular corner plate the opposite margin is folded down as at 28 forming within each leg a channel part or a part which is generally rectangular in cross section and is adapted to be received snugly within the rectangular tubular frame portion 10, as shown in Figs. 3 and 4.

This plate 24 has a flat plate-like extension 30 formed on each leg which extension 30 is adapted to be received within the space 22 snugly between the two plies of the channel side wall. This snug reception of the flat portion 30 within space 22 and of the rectangular portion of the leg within the rectangular tube of the frame section cooperatively secures the angular corner plate to the mitered end of the frame section in a strong and rigid manner. When the two legs of the corner plate are cooperatively associated with the two frame sections, as shown in Fig. 2, such frame sections are securely and rigidly fastened together against displacement, wobble, or twist and the corner of the sash is particularly strong and rugged.

The flange 26 of the corner plate is shown as provided with spaced apertures 32. These apertures are provided so that the frame sections may be indented thereinto as shown at 34 in Fig. 4 if such is desired, but it has been found that generally speaking, such type of securement is not needed. When the corner plate and the frame section with which it is connected are properly made, the snug engagement is such that this additional type of securement is unnecessary. A glass pane 34 may be seated within the channel 12 and held therein by compressible packing 36 of putty or any other suitable gasket material.

In the adaptation of the frame structure to receive a screen the channel which is disposed within the plane of the frame opens perpendicularly to the plane thereof, as shown in Figs. and 6. In such figure, one side wall 40 of the rectangular tubular frame is bent to form a side wall 42 of the channel. It is again bent to form the bottom wall 44 of the channel. It is again folded upon itself as at 46 to cooperate with the margin of the opposite wall 48 of the tubular rectangular frame to form the opposite side wall of the channel. Said wall 48 is extended to overlap the bottom wall 44 of the channel and further extended as at 50 to overlap the side wall 46 and is then folded as at 521%ver the side wall 46 as shown particularly in Figs. 5 an It will appear that in overlapping the bottom wall 44 of the channel the wall section 48 abuts directly thereagainst throughout its length and for a part of the width of the bottom wall 44 and throughout another part of the width thereof, as at 54, it is spaced therefrom. This space between the two plies, which constitute the bottom wall of the channel, is a continuation of the space within the interior of the rectangular tubular frame 10, as hereinbefore described in connection with Figures 1 through 4 and is a space within which the plate portions of the corner plates are adapted to be snugly received. The corner plate shown in Fig. 5 is of the same character as the corner plate shown in Fig. l and is snugly received within the interior of the frame sections in the same manner. It forms a secure connection therewith. The frame sections may be crimped into the apertures 32 as at 34a in Fig. 6, if such is desired, but as has been stated, such has heretofore not been found necessary.

A corner connection built up of the frame sections as specified and including the corner plates as described has been found to provide a particularly strong and rigid corner for a sash. Such is true whether the sash is of the glass pane receiving type or of the screen receiving type. A screen mesh 60 may be folded into the channel and a fillet of suitable deformable material 62 may be pressed into the channel to hold the margin of the screen in place. This construction is well known.

What I claim is:

1. In a sash, a frame section formed of a strip of sheet metal folded linearly upon itself to provide a tubular frame generally rectangular in cross section and providing along one side of said frame an open channel generally rectangular in cross section with the side walls of the channel formed in part as substantially planar continuations of the side walls of the frame, one side wall of the tubular rectangular frame extending over and overlapping in spaced apart relation one wall of the channel throughout a portion of the Width thereof and thereafter bent to extend angularly toward said wall of the channel and abut the same directly throughout the remaining portion of the width thereof in overlapping juxtaposed relation reinforcing such wall of the channel, the space between said wall of the channel overlapped by the side wall of the tubular rectangular frame section and said overlapping side wall forming a continuation of the space within said tubular rectangular frame section, said frame section being provided with an angular corner plate having one leg folded throughout a portion of its length to form a substantially U-shaped channel portion snugly received within the tubular rectangular frame and engaging three walls of said frame, said leg exhibiting throughout another part of its length a flat ear portion snugly received within the space between the side wall of the channel and the side wall of the tubular rectangular frame which overlaps the side wall of the channel with a marginal edge of the ear wedged against the bent portion of the tubular frame wall whereby the plate constitutes a rigid corner extension of the tubular rectangular frame.

2. A sash as defined in claim number 1 characterized in that one side wall of the channel is formed by a planar extension of one side wall of the frame being folded over upon itself forming a two-ply channel side wall, and the bottom wall of the channel and the opposite side wall thereof is formed by a continuation of said extension being bent angularly to the two-ply side wall forming the bottom wall of the channel and then being bent angularly and parallel to the two-ply channel side wall and then folded outwardly of the channel upon itself and over the extended margin of the opposite side wall of the frame forming a three-ply channel side wall parallel to said opposite side wall of the frame, the marginal portion of the continuation of said extension being provided with a linearly extending line of indentations formed therein and in the extended margin of the side wall of the frame overlapped thereby reinforcing and stiffening the same.

References Cited in the file of this patent UNITED STATES PATENTS 1,704,314 Edwards et al Mar. 5, 1929 1,725,937 Rosel Aug. 27, 1929 1,733,877 Higgin Oct. 29, 1929 1,832,078 Zahner et al Nov. 17, 1931 1,939,955 Cornelius Dec. 19, 1933 

